Differential mechanism



Fb. s, 1927. 1,616,627-

O. E. HUNT DIFFERENTIAL MECHANISM Filed Aug. 1.1. 1922 S14/vanto@ Patented eb. 8, 1927.

, 1 7 maar enivi'oiin E. HUNT, or minatori?, MICHIGAN, *'Assieivon To GENERAL Morrone con i resection, `or perno-in MIoHiGAN, A, ooiironarron or :nntavvannj ynnerr;:RENTlaiz ilinefeminin/i'.Y

ppireatioaieaaugust V11, 1922. sei-iai No. 581,165T

Y This invention relates toautomobiles and more particularly to the" differential mechanisinvtliereof;

.One ofthe objects of the invention isthevv provision of a new andV improved differential assembly 4th at is substantial vinA construction,

cheap to manufacture, easily assembled, coni-V pesedof few parts, and'that is not likely to getout oforder. n t

Another `object of.'` the invention is the eliniiiation'of the spacer block and at the or bearing.

same time provide efficient means for lubri-. eating the moving parts.

Other and further ob `ects and advantages ofv the invention willl appear from the description takenin connection with the accompanying` drawings in which I FigureA l1 is a section of a differential mechanism, parts broken away. i Figure 2 is a section on line 2 2 of Figure1. Y. Y 'i Figure 3 is aV planrvie'w of a vdetail with parts broken away; and, Y

Figure 4; is a perspective View of the combined spacer and differential pinion shaft On the drawing the reference character 10 designates Vadifferential support which mayl be an integral yoke and is preferably of the ltwo pinion type. It may, however, be of a different type and comprise a plurality of sections secured together in the usual manner. The support 10 is provided with laterally extendinghubs 11 and 12 which arel adapted to engage bearings in the differential housing as is usual in such constructions.`

' cured tothe axlesections 1'5Mand'16, i'especn4 tively, in any suitablefinanner as by provid-V spiined projections 23 and '24 onthe inner endsnof .the axle sections andr16 which. are adapted to engage corresponding-recesses formed in the inner periph cry of the openings 25 and 26 in the gears( 21 and 22. u Suitable meansaare provided for preventing 'tlie withdrawal of the axle" :sections from the side gears such as the Cf.: shaped retaining spring washersy and. 31y

Vaide section;

nism. Y f

When it 1s desired to 'withdraw the axle which are adapted to engagegrooves` 30a and 31a about the inner ends ofthe said axle sections.V vThese washersl may, if desired,bev seated Vin counterbores formedinthe inner endsoftlie sideigears. Y f i r The yoke 10 is providedwith alined circular openings/132 and 'arranged atlrightan- Vfiles to the .aXle sections 15,and16. A'lshaft 321 is adapted to extend through'saiolopenings, an'dto'be lsecure'd'therein by any snitvable means such as the `pin 35. ,i This shaft is adapted to constitute a bearing on which the differential pinions 38 and 39'are roitatablymounted. T he differential pinio'ns'38 and 39 are adapted toy mesh witlifthe side gearsfor rotating the axles 15 and 16, and permitting a differential movementthereof` as is usualin such constructions. rl`lie' yoke 10is alsovprovided withthe usual ring 'Gear 36 which ma be securedtheretoin an convenient manner asby means ofthe bolts 37. y

It is cominoiipractice in the manufacture Y of differential mechanism to employ a spacer in the differential support for preventingvor between the parallel faces is suclitliatrtlie shalt when inserted betweenthefinner ends of the axle sections'` will constitute a spacer block to prevent inward movement `of either Y The zfiat portions or plane faces 4Oand141' may extend theffull length of 'the' shaft,V whereby when said shaft is secured in position in tl'ie circular openings V32 and 33 the flattened portionsof said shaft will form4` withthe walls 'of said openings, conduits, passages or spaces through `which oilfniay pass for lubricating thedifferential pinions Y and other parts of theV differential lmechasections the shaft 34 is removed Vwhere-by saidY taining washers removed, after which the axle sections may he withdrawn.

` lt will be understood that various changes inY the forni, construction, composition and arrangement of theseveral yparts may 'be resorted to without departing from the spiri and scope of my invention; hence I do not wish to limit myself strictly to the structure herein set forth, but

l/Vhat l claim s:-

l. 'A dierential comprising, in -combination, a'diferential support oarryinga ring gear, side gears havinglaterallyeextending liubsbjou'rnaled in `opposite sides of the support, axle sections splined in lthe hubs -of the -side gears, a shaft fixedly secured in the support at -right Aangles to thelaxle sections and v extending between -the fside gears, differ# ential pinions supported at diametrically opposite point-s by and between said side gears,

said shaft being formed throughout its llength with flat faces next saidside gears and supporting said pinions. Y

2. A differential comprising, in Combination, a vdifferential support carrying a ring gear, side gears Carried within said support, axle sections splin'ed in the hubs of said side gears, differential pinions between said `side gears .at diametrioally opposite points, a shaft formed throughout its length withA flat opposing faces, said device Constructed and arranged to receive said shaft through openings in said support aand pinions vwhereby the inne-r ends of said axlesections engage' :the flat 'faoeson said shaft,;an`d

means for securing said shaft within the.

support.

ture.

ln :testimony whereof I aflix my signa` 

